I use videos on a regular basis in class, but it often has to be done as whole group instruction. I really like the concept of using the iPads to create video stations.
Blinkx http://www.blinkx.com/ looks like a really cool resource because it puts every streaming site in one search engine.
I am glad to know about http://saveyoutube.com/ and http://snipsnip.it/ because I have had situations where I've found something really cool on youtube that I want to use in the classroom, but it was longer than I needed. I'm glad to have a resource to download the video and edit if needed.